Home / 13,386.42-20,080.61-3,525.63

Finding the Fourth Proportional to 13,386.42, 20,080.61 and 3,525.63

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Solution

The fourth proportional to 13,386.42, 20,080.61 and 3,525.63 is: 5,288.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,386.42 : 20,080.61 = 3,525.63 : x
  2. Step 2: Convert to fraction form
    13,386.42/20,080.61 = 3,525.63/x
  3. Step 3: Cross multiply
    13,386.42x = 20,080.61 × 3,525.63
  4. Step 4: Simplify right side
    13,386.42x = 70,796,801.03
  5. Step 5: Solve for x
    x = 70,796,801.03/13,386.42
  6. Step 6: Final answer
    x = 5,288.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.